i'm sorry, jim, i'm going to stop the subsidy to pbs. i'm going to stop other things. i like pbs, i love big bird. actually like you, too. but i'm not going to... i'm not going to keep on spending money on things to borrow money from china to pay for. >> woodruff: for his part, president obama did not bring up romney's now-famous "47-percent" comments, his record at bain capital, or his stances on immigration or abortion. but the candidates did cover a range of other issues, sparring repeatedly over tax cuts. the president singled out a bipartisan analysis that concludes the romney plan would cost $5 trillion over 10 years. >> i'm not looking for a $5 trillion tax cut. what i've said is i won't put in place a tax cut that adds to the that's part one. so there's no economist that can say mitt romney's tax plan adds $5 trillion if i say i will not add to the deficit with my tax plan. >> well, for 18 months he's been running on this tax plan. and now, five weeks before the election, he's saying that his big, bold idea is, "never mind." and the fact is that if you are lowe